This is the trailer for Star Wars: Knights of the Old Republic 2: The Sith Lords, developed by Obsidian Entertainment, produced by LucasArts. A short narration of the background story is done over in-game footage from the game.
This is sourced from the game itself, where it was included as one of the video files. The modified date on the file was 10 December 2004, 14:54:14.
You can download the MPEG-4 converted file
, or the original .bik (Radgames Bink) file